The Siraha Police has filed a case of treason at the Special Court against three cadres of Dr CK Raut-led Free Madhes Alliance. Superintendent of Police (SP) Shyam Gyawali said that the case was forwarded at the Court against Chandreshwor Mahato, 40, of Bishnupurkatti, Bishnudev Chaudhary of Lahan Municipality-8 and Sudipraj Kushawaha of Lahan Municipality-13 on the charge of being involved in anti-national activities. They were arrested in Lahan Municipality of the district on Saturday. Meanwhile, a woman, who was absconding for 23 years after the Siraha District Court slapped one-year jail term in 1992, was arrested on Sunday. A team of police personnel led by Police Inspector Santosh Niraula arrested Kumari Devi Ram (Chamar) of Golbazar Municipality-1 from her own residence. Police said that Ram would be presented before the court for necessary actions.